{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314016",
    "entityType": "User",
    "nonce": "0xc7228c17020e669dac72d0d753b0926ed20ab1900d1a6122161d4c0e0895af2e",
    "signature": "0xf369fd68303e0d466341d9b9de07efc6c1d9644ba00e6c07ab209064450d02ab41e260d9b138a95303b48343a4b6d422995c253708d0bd9dd2f9a5d0b28cf09d1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}