{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "899783541",
    "entityType": "User",
    "nonce": "0x8712c63ecefbb1a25c10d92367a4624d30c25d2da076e858874e1e617f8d6b0c",
    "signature": "0x34b9d174ecc6d2b88339532ea2746669aec5fac4839a6b6f17fd181f4503d69b2405ed2ea412f317361f834101407242e044aca808c5f14f0b2607bfaf47aed51b",
    "signer": "0x73622d6a944fE5e48cB2905A89fa0F72c494e9c5",
    "userId": "296201762"
  }
}