{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216190501",
    "entityType": "User",
    "nonce": "0x82c41a352acd9f2cd76c0e139ee1f45ea85d6c7d559e16d62d761a94078176c2",
    "signature": "0xd346b2212f5bd4fdd7182eef37d3ac7680d976549cd09aa1575a5a980140b4b10bca11d994a852e69dc7a86fc1f1c2c37c1295eca4e2afeb517e6f5e6dee0cd81c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}