{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "781543844",
    "entityType": "User",
    "nonce": "0x6f1c3befc7ce0c53cb8e36a7ecb2d08f2ccef70acdf951817ef638639c688e7a",
    "signature": "0xa2853b1311f154af2132df12c217e97337230063a0f44e6c0d3d9bc2a253beb4239d5a105a05bc5392869bc655fcf8e42e9d0992cda143c5c5a56b36da1ac32a1c",
    "signer": "0x0FFb102af9bEd83F1ef5aa71Bb44e1B6c455B022",
    "userId": "785050962"
  }
}