{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "969012944",
    "entityType": "User",
    "nonce": "0x3ee06873ee35f330821657108013e89b93a0ce32f16aa24872290867c1313c0b",
    "signature": "0x61a6b72a4986b5da47cb3ec9b9dfc9d6abb7a8f5d2e752a02799c6e09d8b88397ebf7ae8b825fa0ec1ddcc29ef2b828e71659dc6141424797fd75d4c22adac0b1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}