{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707342168",
    "entityType": "User",
    "nonce": "0x834853c76dc7ffa6f3c5c0c23ea9ad79a2fd30c89acfc982d09986f5952322b9",
    "signature": "0x1e4aefba0f1e3a6111fb5ca69740f2306b7038418b252d95d5eb81454dd260d16329ff2ce2b13c1a1c0e64efa8b7bc0d8094ac3fe16f97b88acd6a7ac5f8d3101c",
    "signer": "0x0CD8c65F2d0399B442E2f8907f48BC34f1Ee7615",
    "userId": "901822438"
  }
}