{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11929",
    "entityType": "User",
    "nonce": "0x7521b28b31f3990dfa01ff7d848e97f059000c7a617197c53f4f06f9e387e1f2",
    "signature": "0x781562da224135ddc4972f2c3ae2337e24dc9e325a78b0c292185aaf2a7f0ef014af5d75731163c246c42fcb63ff9f632ac4dc3ca8b9119a0c83f04cb7dc2a341b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}