{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158316",
    "entityType": "User",
    "nonce": "0x8fe5c9e0706104ee9ae53f5c1be7791a84191da453ee63d6eaa534395c7dd427",
    "signature": "0x28527666aa34908225e7d4f6d971eb62019d3248656a303093b3b48985fe94ae1d5008b93721fc8e86850f24d6a644a06e7a0187d2fce1df2a9e0acc2d7776a61c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}