{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbfc766bf9247efdf6627764f986a7709e5aeff9fd265c1e31fe2509c94bf91c8",
    "signature": "0x75415cad7efd536f2a57f591fecb24ee0fce0a19ea0639e67aac6a7ad8d62054396243e30f79fc247a259f9aa8071e2fc47d0d08947bc51b8d8486cebad5efc71c",
    "signer": "0x7BeE6A029868871221bFC265e0DAE4553A4eC744",
    "userId": "229698256"
  }
}