{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf8ca9d37b17cd1533525e245b8ca60853b82f6a53bf5dd8c67e04e4d62d363b0",
    "signature": "0xdf52cdebf69b51a1169566481692b7074f70e1c5a614183e69d9513faec753874c700098f0e8ade5b077e62852c1eb850323c6a5d19cae0357d421e419a67f121b",
    "signer": "0x74dA318ddE12CaeE553210EF05624988d39791b1",
    "userId": "914755771"
  }
}