{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x719fe2090e14fa9e2bc05f17996c6ad078f6c4de7112237c97cb956236a7ca1b",
    "signature": "0x5daf452d78abcacba9aa7c2895db316810dd42f2618710e70bf93258f7adfc2638bb07f00716b914269f9244305af1c599f92c5457be762ca2214b7ce707f4191b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}