{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231243",
    "entityType": "User",
    "nonce": "0x3e0299944a4899dc7aa6a884342e04d0a2d8fc8fa92e67caeed7adfd4ecd6ef5",
    "signature": "0x3b5b0164baf3142dea0ea725e9bbf2c3f221e65309fc56319308fcbf7e5946296e1dbe64c1ba160fd686086a1af1c923f4717345ddb912ccad74d9bcee775f6a1c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}