{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24d85b1c6df9354e46c3ef7b11f2d107c69b64495402b5621a8383034d407285",
    "signature": "0x8a01033d0305293405a4d6cf5791dfb40c6205cb089cd477c25209b031642f9c7ebd17de8175136c5165219bc34d2a771c3923ad1c304a4ec2c16ba0644bc7891c",
    "signer": "0x7fB94C741b5E1E1E1F6c11Fb6D52e068D0139B8C",
    "userId": "45487140"
  }
}