{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "654087878",
    "entityType": "User",
    "nonce": "0xa8f0a3fbd2847961ef4e78068b811bcc1e56dd42220afd172231b614ebfb2f74",
    "signature": "0x9c37917ec3d3f5505b26b7a3a82598c2bcf2a7db4a4583ca665cb58f74b93ee2481bc569bf99a6179df36c95912c9aed717c6e1bae6409798f13e3e4ced574431c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}