{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x63e12788c3797af14329c663742a20a88265abf53f99b7204c43aa6f6827ba1e",
    "signature": "0x6124bcc8d07a05a22bdc9d9ef6f9806a4c242e53baaa3a768aee3e037124329a144ccb8a9f51c70f472902fd9a5202f141790a88516bc49222e4a2d964f3c92a1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}