{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3c1b999ee8b2b4fe3ce8330d27776c91768621eeeafbfe995993b9e0b7bb3bce",
    "signature": "0xa87b629cfefe52c619fa5585f1da0e3b18329d710d78d0ddbb08e55c9bdb19c65675f8f3eb42c7785896f16c1c6ac9f87b52b89ae35c7e65f9c7e8408561517b1c",
    "signer": "0xf8Eb229C4E9DF1a0309047d50bDBc725Ee98A292",
    "userId": "920952181"
  }
}