{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71076c3250a014920fa04e968049ca3cc4103f8ff3e314921357903d98d60aa0",
    "signature": "0xa15cf3213635aac98e0a792df132faff2f597a33c2dc13a5055fed6d20838535675f784d296d89144a1121b11ed1a3d9498913c245a7cbcb1aaa120265cb17f91b",
    "signer": "0x89715A6F0c23C84cE71166083899D25bE26BfBC1",
    "userId": "952196459"
  }
}