{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x4aeaeeb23dd01cecc81ae905af7583ca7f2c6389dc669bf226958c3eb3bdbf69",
    "signature": "0x921e864f42de5184d0a01900f028a680814f8d1032180c787b975cefc56342ce74636e6b39c4ec24f0425ffe8dcecb0eece9e3e7677648b36c194f25916d17351c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}