{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64670",
    "entityType": "User",
    "nonce": "0xa0d83df0dd582b4f2d98f9c75a882680531c74631f767ee80e87cf61ddc7a1c9",
    "signature": "0x108e74e748c5bb0413c3da48b1bcfd8109233e89f860d3698cedddbff423eedc47ad18ce4b2793d17a86de070c686c441973b8418000b9f3ccd28850ec0c50621c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}