{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa8310551f591a8e70e4821cc1f97ae051b01f14f139d378b6e7827e1fc30a9bb",
    "signature": "0x4633effd6ed5bbd2556ff36aceb40f05b07dd33f2573b29736ea8e876107222f73de4f4e1bfdc7d51ab3277ed62c944d483bf874e573890495e204b4b8e50dac1b",
    "signer": "0xb6457a848FEe1525B249c5809C4143A87E72aba7",
    "userId": "271868552"
  }
}