{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb112c9f7490ec79c2db405155b618d04ff438df2d3bc2fc010d704b38ddbc527",
    "signature": "0xf0a6a7af2674cf2b3bfd9cfcfaa33a0d3d46e11aba0f9d60f3fea06caa96a3572a82b2b4c8f31342f9b6598a60d126b6272e823a0d5aa2d94117a49407b7251b1b",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}