{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x13d7a240ea667212c2ed7fa73512d8f19dc2cf01395f98ba98ace0e7481f9ca1",
    "signature": "0x5f36394f302dad487dd35425c269d318e150d005eea045ba3bf9a459fdaddd00166948136f76403169fefdc12c19add048849f5ca141c94fd85e35b8fc1ba8351b",
    "signer": "0x2d49E1dFdB888779419505A64C15Cda3477306cb",
    "userId": "294281809"
  }
}