{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809958659",
    "entityType": "User",
    "nonce": "0x7bcf95a8c180a7ea690a85dfcb919fb63e71c59c65c835772482f3c8e0cd4af2",
    "signature": "0x4d23b676f984c17044e5680999a1aaa862ddad35c933084f0b7a6c4af39d105b47dd1f83d88732abf49a958b0ecdda5950a14c4c0d54b0bfe647c1d2d29bd38e1c",
    "signer": "0xa4076fd8DbfDD3f5cf89D40D3621CAdc819f497E",
    "userId": "949258678"
  }
}