{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "169705",
    "entityType": "User",
    "nonce": "0x5e627cf000e1496dfac9e7454759facf7915dfb17dde4bbdd3897a3869862ccb",
    "signature": "0x693eddb1e1a0e7e841858f0e93aa725bdb793f55365b2cc416e5f6ea69b0e3e1276bc63a73d0a1f34acee6fcf2a37439f2da4a87f771cdab663fb72e488d3c3c1c",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}