{
  "manageEntity": {
    "action": "Follow",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x6136e81ba50db75f0e2b72ad1441607652d9588df69f2fafa79a73a40b5a5532",
    "signature": "0x7ed174ed4577161acc8a22c0008d012a8c87673025357ce9857db07ae9a336126318f622e5a6b5ff4fd9f7b0a5b4d51a76b9ed8cfdb4a5f7ee6cbba07462a81b1c",
    "signer": "0x670E4517CCB95F2b528b0D6B0E50DC7a0f51f838",
    "userId": "555604608"
  }
}