{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143127",
    "entityType": "User",
    "nonce": "0xeb191d513e8d41877427854b9db5323b5e7793e7055e08306f152cfdf4f86689",
    "signature": "0x4ab60a1317ff26774bac40e201689a94f3639d9d61327e0d76dee44ff1bd2efe3b1ed43e54f26744a66fff1f39f4db7bfc1bee04b6a86b664a27aeafa0eea8aa1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}