{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "816709547",
    "entityType": "User",
    "nonce": "0x82133fc8d2988629db33d2c9c8d25f111806830ef25c38a9dc16b8957af37cd2",
    "signature": "0xc05c4e4e7013df847570f14422d80179878bc871f7846d7ee273aa42bcfb7a495f872b8dc7247b37eb7aac0a0b78ce4841b6b536384143ff72a73f1f59c1ff641c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}