{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf90ab9fcebf40e5cc49d2a1b54dad7496ba19392cbbd57e55ac9909af2440c0b",
    "signature": "0x0ae1ff4110672a349a707b41ae9147ee0dc623a4b10c9a37769f27fdbb80061121bd91d0a2b58a0758f7d9999c04331395df87cad0f6a1963fa7ea9b1c6c1a001c",
    "signer": "0x145E2967a4b3eA92C71b6f58626d72923c4ad37e",
    "userId": "39089899"
  }
}