{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x44b8d716d947866c37daaca661047906e4b4a02f0cf050e8399b5a56b8a8c0a2",
    "signature": "0x3197776c6ef3f6085cf915c59d4dfbf89f088dbb65b5dc8009fcfd96567d5a3710b4ef3f02c90fb1ef0b3929dc99f5279b1b5a3c1d9a33a9717633e73b220a2e1c",
    "signer": "0xe7329D7eBdA1f581Da1FFF9Cf55eF76Cced6323a",
    "userId": "799024490"
  }
}