{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x883ad86b0d041a1904322c41b1815ffc7d625602784b9367b202ce10c9bf00eb",
    "signature": "0x32e8c569624914c046304d45ee760da77f1fcff0733e962f0917e4c21754c34a7a99aa1fb1b3c4606a307910863342f06b0c2277fedca5fbc5802335111ae8eb1c",
    "signer": "0xdC524B971f140BEA42D4c53e02846516ccf2673C",
    "userId": "950396055"
  }
}