{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0xc23df1cf659cd2b3cbdc7330864389f937a2dd8961edf587dec7507151bd04a5",
    "signature": "0x838994a1ed0454217c41d4302494e19daf03b521556bbd5f516a474ee2cd09c11a240f378b201bb8b9673f1c6cec677ca6a7f0edb8e1acf9bd7010705c8e59de1c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}