{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156881",
    "entityType": "User",
    "nonce": "0xc66265d93e5f841d9686bcc63a8d561d29ee58dc4f732f5dc37154574305eeeb",
    "signature": "0x35901646343989884eb7405a2435b29254ac5857043c07f83da3be63d8d0dd551422cda53b4b79b6e47166c3763c5a6a8a2d580777d097df688c91a9410a9a931b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}