{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2881",
    "entityType": "User",
    "nonce": "0x03733cb993838e89e62341f18c6c4fbd3ebc47b13e6cad9e900ccead5cd91750",
    "signature": "0x939ea1ad783d444e8ee01bbbf8daa76bb5dc421e307e5834d4d8619487fd5ebe73a8d7c6f27bba3ad04a9f5e253b59c5eef4b369e2d2dce961e62a019e6319d41b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}