{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d20c41630d227843885cb51bfdb2e870c6c18ceada6eb8eb9d2220f47e2d485",
    "signature": "0x70c6d5c64ed8aaaf6064eaae2212acdf956e818f06f5774c2ecd0205cd302d087ed986d5832cb7b1425220a102955a09781d7d82a6423a1a915a4b33113e220e1b",
    "signer": "0x4Fef2Caf2470ed5C7FD86Eed7226B5432746C7fc",
    "userId": "244185943"
  }
}