{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353356",
    "entityType": "User",
    "nonce": "0x1d7896f251b2866169292429d51803af7331078b48c399fd0ec28dca769707bc",
    "signature": "0x509c63318c7455f0766e2beb57590251f9b431a9b0e9a66d03ebd0e60e92ef8c33f21a59fb0d25117727ad9d800d2628898e1af7505b64a20e97d0d4027b74b31b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}