{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134021",
    "entityType": "User",
    "nonce": "0x1c6e3d9631ea12abc5964db7c997b6beee785d590a68b490c560ec8506b19771",
    "signature": "0xf0e023d18acdfed34ba608cbc0355ec7655a1bbff9687843c6ff02d9970d5ec90ed6ec0cefc2cdee0ca7e3c6c74890f31fa8ab38374f01d64709dd268066ee951b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}