{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7d1fec6bd3e419b8c496d2798ef44ce3501d6fe73906d8f5af4c4e323e7b96d",
    "signature": "0x329014e2f504fb4912be8981a238408e08d46312cc789e11ed2769d6b33dc229542f5dc5a45b2c37730c3bbd425ac23c3888066ace01df34462bebaecf7680901c",
    "signer": "0x9D1c4f50C97e7dF0473F2ba9DDCc558f30C71C6f",
    "userId": "527112414"
  }
}