{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203159",
    "entityType": "User",
    "nonce": "0x7f9e71a52470e0ff03355f61f681b2e644339d4bc0057394139fceea4221686f",
    "signature": "0x972240fe10849d9705234043318b35868f6af4b0e857278d0edaf1dc076e0631577e47868d78b6226643ff63b1200e8b547839463c9f9116f450604696dbe18e1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}