{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1968714",
    "entityType": "User",
    "nonce": "0xcba67c0c87fc675335a2eb4ee4e879db50140a3b2f3ae7588ece0dd7a6a5bd8d",
    "signature": "0xf9dbb422ea507c2a4450b973f32f3ce34e0678de4ffad97172604454d945a0363f329d35cca707950925ef62d4b51a61054e5040b1693440377ffd23e04441db1c",
    "signer": "0x7A49b4225414DfE2D3601F6d5Eb10989dF756b1B",
    "userId": "505787434"
  }
}